US2685642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio dispatching system
Assignee: TDK Micronas GmbH
•
Filing: 1952-01-24
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Granted: 1954-08-03
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Expires: 1972-01-24
Abstract
No abstract record available.
Inventors
- 👤 Antonio R Vallarino
- 👤 Sidney W Lewinter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:05
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/02; H04W16/12; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2621; H04W84/00; H04W84/02; H04W84/04; H04W84/08; H04W16/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |